:root{--main:#eb6d57;--text:#4c3219;--soft:#fad0b2;--accent:#f7b32b;--bg:#fff8f1;--card:#fff;--line:#f1d9c3;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--text:#fbe9d8;--bg:#2b1d12;--card:#3a281a;--line:#5a4230;--soft:#5a3a28}}
:root[data-theme="dark"]{--text:#fbe9d8;--bg:#2b1d12;--card:#3a281a;--line:#5a4230;--soft:#5a3a28}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Meiryo","メイリオ","Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;line-height:1.7}
header{background:var(--soft);text-align:center;padding:36px 16px 28px;border-bottom:6px solid var(--main)}
header small{color:var(--main);letter-spacing:.2em;font-weight:700}
h1{margin:6px 0 8px;font-size:clamp(24px,5vw,36px);color:var(--text)}
header p{margin:0 auto;max-width:560px}
main{max-width:1100px;margin:0 auto;padding:24px 16px 60px}
h2{font-size:20px;border-left:6px solid var(--accent);padding-left:10px;margin:28px 0 14px}
.courses{display:grid;gap:12px;grid-template-columns:1fr 1fr}
.course{background:var(--card);border:2px dashed var(--main);border-radius:16px;padding:14px 16px}
.course b{display:block;color:var(--main)}.course span{font-size:22px;font-weight:700}
.grid{display:grid;gap:18px;grid-template-columns:repeat(3,1fr)}
@media (max-width:960px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.grid,.courses{grid-template-columns:1fr}}
.card{background:var(--card);border-radius:20px;border:1px solid var(--line);overflow:hidden;box-shadow:0 4px 14px rgba(76,50,25,.08);display:flex;flex-direction:column}
.card .top{background:var(--main);color:#fff;padding:12px 16px;display:flex;align-items:baseline;gap:8px}
.card .top .d{font-size:32px;font-weight:700;line-height:1}.card .top .w{font-size:14px}
.card .top .m{margin-left:auto;background:var(--accent);color:#4c3219;border-radius:99px;padding:0 10px;font-size:12px;font-weight:700}
.card .body{padding:14px 16px 18px}
.venue{font-weight:700;margin-bottom:2px}.note{font-size:13px;opacity:.85;margin-bottom:10px}
.slots{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
button{font:inherit;cursor:pointer}
.slot{border:2px solid var(--main);background:transparent;color:var(--main);border-radius:10px;padding:8px 0;font-weight:700}
.slot:hover,.slot:focus-visible{background:var(--accent);border-color:var(--accent);color:#4c3219}
.btn{background:var(--main);color:#fff;border:0;border-radius:99px;padding:12px 28px;font-weight:700;font-size:16px}
.btn.sub{background:transparent;color:var(--main);border:2px solid var(--main)}
.empty{text-align:center;padding:40px;background:var(--card);border-radius:16px}
.modal{position:fixed;inset:0;background:rgba(76,50,25,.55);display:none;align-items:flex-start;justify-content:center;overflow:auto;padding:20px 12px;z-index:50}
.modal.on{display:flex}
.sheet{background:var(--bg);border-radius:20px;max-width:520px;width:100%;padding:20px;border-top:8px solid var(--main)}
.sheet h3{margin:0 0 4px}.sel{background:var(--soft);border-radius:12px;padding:8px 12px;margin-bottom:12px;font-weight:700}
label.f{display:block;font-weight:700;margin-top:12px}
.req{background:var(--main);color:#fff;font-size:11px;border-radius:4px;padding:1px 6px;margin-left:6px}
input[type=text],input[type=email],input[type=tel],input[type=date],textarea{width:100%;font:inherit;color:var(--text);background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px;margin-top:4px}
input:focus,textarea:focus{outline:3px solid var(--accent)}
.opts{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.opts label{background:var(--card);border:1px solid var(--line);border-radius:99px;padding:6px 12px;font-weight:400;cursor:pointer}
.opts input,.radio input,.agree input{accent-color:var(--main);margin-right:6px}
.radio label{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:8px 12px;margin-top:6px}
.notice{background:#fff3c9;color:#4c3219;border:2px solid var(--accent);border-radius:12px;padding:12px 14px;margin-top:16px;font-size:14px}
.notice ul{margin:6px 0 0;padding-left:20px}
.agree{display:block;margin-top:12px;font-weight:700}
.err{color:var(--main);font-size:13px;min-height:1.2em;margin-top:6px;font-weight:700}
.acts{display:flex;gap:10px;margin-top:12px;justify-content:flex-end;flex-wrap:wrap}
.admin{background:var(--card);border:2px solid var(--accent);border-radius:16px;padding:16px;margin-bottom:20px;display:none}
.tg{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin:8px 0}
.tg label{border:1px solid var(--line);border-radius:8px;text-align:center;padding:4px 0;cursor:pointer;font-size:14px}
.tg input{accent-color:var(--main)}
.del{background:none;border:0;color:var(--main);text-decoration:underline;font-size:12px;margin-top:8px}
.logo{width:96px;height:auto;display:block;margin:0 auto 4px}.slot.full{background:var(--line);border-color:var(--line);color:var(--text);opacity:.55;cursor:not-allowed;text-decoration:line-through}.slot.adm{opacity:1;cursor:pointer;text-decoration:none;background:var(--soft)}#blist{font-size:13px}#blist div{border-top:1px solid var(--line);padding:6px 0}
footer{text-align:center;font-size:12px;padding:20px;opacity:.7}

.slot.full,.slot.full:hover{background:#d9d4cf;border-color:#d9d4cf;color:#8a8580;opacity:1;text-decoration:line-through;cursor:not-allowed}
.slot.full small{text-decoration:none;font-weight:400}
.slot.full.adm{cursor:pointer}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .slot.full{background:#4a4038;border-color:#4a4038;color:#9a8f85}}
.admin a{float:right;font-size:13px}

header{background:var(--main);color:#fff;border-bottom:6px solid var(--accent)}
header h1{color:#fff}header small{color:var(--soft)}
header .logo{width:120px}
.note a{color:var(--main);font-weight:700}

header{background:#eb6d57!important;color:#fff!important}header h1,header p{color:#fff!important}

.admin{display:block!important}